diff --git a/CMakeLists.txt b/CMakeLists.txt
index d9574ec9b..02c0b009c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -78,7 +78,7 @@ list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_SOURCE_DIR}/deps/meta-cmake/)
 
 FindOrBuildICU(
   VERSION 63.1
-  URL http://download.icu-project.org/files/icu4c/63.1/icu4c-63_1-src.tgz
+  URL https://github.com/unicode-org/icu/releases/download/release-63-1/icu4c-63_1-src.tgz
   URL_HASH SHA512=9ab407ed840a00cdda7470dcc4c40299a125ad246ae4d019c4b1ede54781157fd63af015a8228cd95dbc47e4d15a0932b2c657489046a19788e5e8266eac079c
 )